Fig. 5

Comparative incubation patterns of seabirds (and two waders) evaluated using the same type of egg loggers for each species. The unfilled bars and symbols represent birds from Charadriiformes, blue bars and symbols from Procellariiformes, and black bars and symbols from Sphenisciformes. Sample sizes for data presented in pane B are given inside each bar. The original sources of data for (1) stilt and avocet are from G.T. Taylor unpublished, and tern are from [62]; (2) auklet, gull, and albatross are from [26]; (3) kittiwake from [41, 53]; (4) both s. petrel and C. petrel are from the present study; (5) penguin from [25, 52]